Yukon Gear & Axle YGK2004 8.5" GM 4.56 Ratio Ring & Pinion Master Install Kit with Dura Grip Posi

The Yukon Gear & Axle YGK2004 is a complete differential upgrade package designed for GM 8.5" rear axles with 10-bolt covers. This comprehensive Pro Kit combines a precision-engineered 4.56 ratio ring and pinion gear set with a master install kit, 30-spline Yukon Dura Grip limited slip differential, and all necessary bearings and seals for a complete professional installation.

Complete Package Includes:

• Premium 4.56 ratio ring and pinion gear set for GM 8.5" (ring gear diameter)
• Yukon Dura Grip clutch-style limited slip differential with 30-spline internals
• Master install kit with high-quality Timken bearings
• Axle bearings and seals for complete axle service
• All small parts and shims required for proper setup

Key Specifications:

• Ring gear diameter: 8.5 inches
• Gear ratio: 4.56:1
• Differential carrier bearing outside diameter: 2.891 inches
• Compatible with 10-bolt rear cover and 10-bolt ring gear applications
• 30-spline limited slip differential

Features and Benefits:

• Fully rebuildable Dura Grip limited slip for long-term serviceability
• Precision-matched components ensure proper gear contact and quiet operation
• Timken bearings provide superior durability and load capacity
• Complete kit saves time and money with single part number convenience
• Backed by Yukon's industry-leading warranty

Yukon Pro Kits are designed for professional installers and serious enthusiasts who demand the highest quality differential components. By including everything needed for a complete installation, this kit eliminates the guesswork and multiple part ordering, getting vehicles off the lift and back on the road quickly.